Attaching device for yarn-tube frames



April 14, 1925. 1,533,340

W. W. ROBERTSON ATTACHI HG DEVICE FOR YARN TUBE FRAMES Fi led Nov. 24. 1925 looms.

Patented Apr. 14, 1925.

1 UNI-TED STATES PATENT OFFICE.

WILLIAM-W. ROBERTSON, O'F WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMP- TON & KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORA- TION OF MASSACHUSETTS.

ATTACHING DEVICE FOR YARN-TUBE FRAMES.

Application filed November 24, 1923. Serial No. 676,828.

T all whom it may concern.

. Be it known that I, RVILLIAM 1V. ROBERT- useful Attaching Device for Yarn-Tube Frames, of which the following is a specification. H v i This invention relates to yarn tube frames, as used particularly in AXminster. carpet More specifically my invention relates to improved means for attaching such yarn tube frames to the transporting pattern chains;

It'is the general object of my invention toprovidefa form ofattaching device in which certain parts or elements of each attaching device will form a permanent part of the pattern chain and a portion only ofeach device will be carried by the separate tube frames.

A further'object of my invention is to assemble. the yielding hooks or other movable parts of the attaching devices with the pattern chain, leaving only strong rigid parts on the tube frame. The tube frames are at times removed from the loom and are lnore subject to accidental damage than the pattern chains. Accordingly, I conceive it to .be a distinct advantage to place the hooks or other movable parts on the chains where they are less liable to, be displaced or broken.

My invention further relates to arrange- .n' entsand combinations of parts as shown in the accompanying drawings and more particularlypointed out in the appended claims. 1

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a front elevation of one end of a yarn tube frame and its attaching and supporting devices;

Fig. 2 is a view similar to Fig. 1 but showing the parts about to be separated;

the usual yarn tubes 11. A bracket 12 is secured to each end of the tubular member 10 in any convenlent and reliable manner and is formed at its .upper end with a bearing portion 13 for one end of the yarn spool 14; and with an offset rigid attaching member 15. The member 15 is formed to enter between a pair of links 16 and 17 when the parts are assembled, these links forming elements of a transporting pattern chain 18.

The link 17 is provided with a pair of upwardly extending lugs 19 to which a rigid hook 20 is pivoted at 21. also mounted on the pivot 21 and an offset end 23 of the spring 22 engages the hook 20, bringing ityieldingly to the position shown in Figs. 1 and 4.

A spring 22 is I have indicated in the drawings one of,

the lifting levers or arms 25 by which the tube frames are detached from the transporting chains for presentation to the warp and by which they are thereafter returned and again connected to the pattern chains. As the arms 25 move inward from the position shown in Fig. 1 to that shown in Fig. 2, the tube frame seated in pockets or recesses in the ends of the arms and a portion 26 of each arm 25 engages a hook 20, as indicated. in Fig. 2 and moves it to inoperative position against the tension of the spring 22. Uponthe return of the tube frame to attaching position, the arm 25 moves outward, re-

leasing the hook which again engages the offset attaching member 15 of the bracket 12. It will be understood that the member 15 is provided with a slot or opening 27 through which the hook 20 projects when the tube frame is attached to the chains.

@Having thus described my invention, it will be seen that the only movable parts of the attaching devices, namely the hooks 20 and the springs 22, are mounted upon the transporting pattern chains 18, and that the parts carried by the tube frames are of substantial rigid construction and not easily damaged or displaced.

Obviously many changes can be made in the details of construction of my invention within the scope thereof as set forth in the claims and I do not wish to be otherwise limited to the details herein disclosed. but what I claim is 1. In a loom, tube frame transporting chains, a yarn tube fram'e, and devices for detachably securing said frame to said chains, said devices comprising rigid and yielding members co-operating in pairs, and one member of each pair being permanently secured to one of said transporting chains.

2. In aloom, tube frame transporting chains, a yarn tube frame, and devices for detachably securing said frame to said chains, said devices comprising rigid and yieldingmembers co-operating in pairs, and said yielding members being permanently secured to said transporting chains.

3. In a loom, tube frame transporting chains, a yarn tube frame, and devices for detachably securing said frame to said chains, said devices comprising rigid and yielding members co-operating in pairs, and said yielding members being permanently secured to said transporting chains and projecting downward therefrom when in attaching position.

I. In a loom, tube frame transporting chains, a yarn tube frame, rigid attaching members fixed to said frame, and yielding attaching members secured to said transporting chains and co-operating with said rigid members to detachably secure said frame to said chains.

5. I n a loom, tube frame transporting chains, a yarn tube frame, rigid attaching members fixed to said frame and each having an opening therein, and hooks pivoted on links of said. chains and each having a spring effective to yield ingly advance its hook t'ansversely of one of said openings when said tube frame is presentedin attaching position, thereby securing said tube frame to said transporting chains. (5. In a loom, tube frame transporting chains, a yarn tube frame, rigid attaching members fixed'to said frame, lugs fixed on links of said chains, rigid hooks pivoted to said lugs, and springs engaging said hooks to move said hooks yieldingly to position for cooperation with the rigid attaching members on said tube frame, thereby detachably securing said parts together.

7. In a loom, tube frame transporting chains, a yarn tube frame, and devices for detachably securing said frame to said chains, each device comprising co-operating frame, interlocking connections between the I chain and frame including an element on said chain movable laterally of the chain to lock and unlock the chain and frame, and loom actuated means to move said lockmg .element laterally.

10. In a loom, a tube frame transporting chain, a .yarn tube frame, interlocking connections between said chain and frame including amember on the chain movable laterally to lock and unlock said chain and frame, and loom actuated means to first separate said interlocking connections and to thereafter remove sa d tube frame from said transporting chain.

11. Ina loom, atube frame transporting chain, a yarn tube frame, interlocking mem bers on said chain and frame to hold said frame to said chain, one of said members being permanently connected to the transporting chain, and loom controlled means to move one of said members out of'locking engagement with the other member to releasethe frame from the chain.

12. In a loom,'a tube frame transporting chain, a sprocket to hold said chain from movement transversely ofthe warp, a yarn" tube frame, interlocking members on said chain and frame respectively toho-ld said frame to said chain, one of SZIlClIllQIIlbGIS being movable transversely of said chain and longitudinally of said frame to'relea'se" said frame, and loom controlled means to unlocksaid members. a

' In testimony whereof I have hereunto afiixed my signature.

WILLIAM w. RoBnnTsoN. 

